Gelato is probably the best thing to ever come out of Italy. I'm not trying to disparage the achievements of Italians - I'm just trying to treat gelato justly.
I would go for the espresso. Zegna suits have tons of substitutes - superior substitutes IMO. Espresso is one of a kind.
Usually at a callback interview, you spend most of your time talking to people you wouldn't have seen at the screening interview, so most of them won't even know. The attorney you met in the screening interview may come by to say hi, but probably won't remember what you wore. I agree with other posters who recommended wearing a different color shirt and tie.
this whole post captures why non-trads have an advantage during the interview process.